<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const name = "jack";
      const age = 20;
      const str2 = `he is name ${name}， age ${age} , count ${10 + 10 + 100}`;

      console.log(str2);
    </script>
  </body>
</html>
